Are the ancestors of Austria German?

Austria's ancestors were Bavarians in Germany. Austria is a desolate and newly developed border area in Germany. At the beginning, the population was very small, and Germany immigrated to Austria from Bavaria, which is next to Austria. So today, Austrians and Bavarians in Germany have almost the same language and culture. However, Germany has many dialects. Bavarians and people from other parts of Germany all speak dialects and can't understand each other. Both Austria and Bavaria speak Highland German.

Germans are not only the ancestors of modern Germans, but also the ancestors of French, Italian, Dutch, Norwegian, Danish, Austrian, Czech and British.